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Heart|Natural|GIA

1.55ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 5231986090

Certificate GIA 5231986090

Diamond specifications and retailer prices

From $13,732 NZD
£6,084 GBP
As of October 30, 2026
Save $9,060 NZD (40%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $22,792 NZD at Diamond Wish · As of November 2, 2026
View at Diamond Wish

About this 1.55ct natural heart diamond

This 1.55ct natural heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5231986090. Listed at 2 retailers as of October 30, 2026, with prices from $13,732 to $22,792, a $9,060 spread on the same certified stone. Diamond Wish lists it at $22,792. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.55
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5231986090
Dimensions7.98 × 8.26 × 4.29 mm
L/W Ratio1.04
Top View
7.98 mm8.26 mm1.55 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 5231986090
Side View
Table 54.0%CrownGirdlePavilionCuletDepth 51.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: $22,792 NZD|Low: $13,732 NZD|High: $22,792 NZD|Avg: $17,873 NZD
Diamond Wish
Retailer 2
July 7, 2026
Retailer 2$13,732 NZD
Diamond Wish$22,792 NZD

23 data points across 2 retailers

2 retailers$13,732 NZD to $22,792 NZD

B
Cheapest Retailer
-
$13,732 NZD
£6,084 GBP
Most Expensive
C
Diamond Wish
HR28175 · Nov 2
$22,792 NZD
$12,824 USD
View
1 more retailer has this diamond
Prices start from $13,732 NZDSave up to $9,060 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B
1.55ct Heart
$13,732 NZD